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NSN 5305-01-451-9106

High Torque Screw

About this product

Between 1.241 inches and 1.261 inches fastener length, flat countersunk head style, between 0.4289 inches and 0.4787 inches head diameter, grip diameter: between 0.3110 inches and 0.3120 inches .

Manufacturer part number NAS15815T12 for national stock number 5305014519106.

Datasheet

  • Product description

    Close Tolerance Screw NSN 5305-01-451-9106.

  • MPN or Model

    NAS15815T12

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.501 inches
  • Fastener Length
    Between 1.241 inches and 1.261 inches
  • Head Style
    Flat countersunk
  • Head Diameter
    Between 0.4289 inches and 0.4787 inches
  • Grip Diameter
    Between 0.3110 inches and 0.3120 inches
  • Internal Drive Style
    High-torque
  • Thread Diameter
    0.312 inches
  • Grip Length
    Between 0.740 inches and 0.760 inches
  • Thready Qty Per Inch (tpi)
    24
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Material
    Steel comp 4140 or steel comp e4340 or steel comp 8740
  • Surface Treatment
    Cadmium and chromate
  • Thread Series Designator
    Unjf
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Close Tolerance Screw

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Mechanic Bill explains High Torque Screw

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NSN 5305014519106

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS15815T12 National Aerospace Standards
NAS1581F5T12 National Aerospace Standards
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